in it could be a defense system like bear spray or something as strong. with something like this the shooting in connecticut could have been stopped a lot sooner. i don't know how to prevent it. there's really no right way to do it. there's no wrong way to do it. because really anyone -- you never know you never know who somebody is or what somebody is capable of and no matter what safety precautions, things in the world still happen i would love to say there's an easy answer so no other kids would ever die in their school but that's not possible. it's not going to happen. >> suarez: >> suarez: those were the voices of young people from our student reporting labs proct. you can learn how they first found out about the tragedy and their initial reactions. watch that on our website. >> brown: now, wikileaks, secret cables and the case against the soldier who allegedly took them. hari sreenivasan is back with our update. >> sreenivasan: bradley manning, the army private at the center of the largest leak of state secrets in america's history, is to begin cour